cameroon gce ordinary level 2020 chemistry 2
cameroon gce ordinary level 2020 chemistry 2
The elements sodium ( Na), Lithium (Li), Potassium ( K) and Caesium (Cs) arc found in Group I of the Periodic
Table. ” •
(a) (i) State the common name given to this group of elements
( 1 mark)
(ii) Why arc the elements placed in the same group?
1 •
( b) ( i ) I low are they stored in the Laboratory?
Isf .u K ‘
i 1
( ii) (Explain
(2 marks)
(c) ( i ) Arrange the elements in order of reactivity starting with the least reactive
(1 mark)
(ii) State one similarity in the reactivity of Sodium and Potassium with wate
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